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SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
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8
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6. Speaker Part
Is the terminal of Speaker O.K.?
There is no sound from Speaker
Are there any signals
at the C211,C235?
Check LCD or Replace CN201
Is there any signals
at the pin#5 and pin#7
of U100?
END
No
Yes
Yes
Yes
No
No
The type of sound from
the Speaker is Melody
Replace the Speaker
No
Yes
Yes
No
Yes
Yes
Check the U100
Is there any signals
at the pin#2 and
pin#10 of U100?
The pin#4 of
U100 is "Low"
Check the U101
Check the U102
The pin#4 of
U100 is "High"
Check the U302
No
No